200um, 212um, 224um, Mesh#70 (SS404)

Named after the Primary Sieve Size (212um)
but also suitable for 200um & 224um Sieves

Unique microsphere method of sieve calibration

Mean aperture sizes traceable to NIST and NPL

Measure over 1 million apertures per minute

Typical calibration time of about 1 minute

Method analyses over 80% of the sieve surface

Accuracies and repeatabilities better than 1µm

Results independent of sieve shaking method

Single-shot bottles remove operator bias

No need to send sieves away for calibration

Quick and simple to use!
Empty the complete contents of a bottle onto the sieve and shake evenly over the surface for 1 minute. Calculate the percentage passing and read off the mean aperture size from the calibration graph.